Formaldehyde (CH2O or HCHO) Features
- Alternately displays Formaldehyde concentration, Air Temperature, and Relative Humidity readings (cycles approximately every 6 seconds)
- Visible bright tri-colored (green, yellow, red) LED alarm indicator
- Selectable CH2O unit as ppm or mg/m3
- Adjustable audible alarm for readings exceeding set point (default at 0.08ppm)
- ZERO Re-Calibration function
- Manual Temperature and Relative Humidity Compensation (adjustable)
- Designed with Electrochemical CH2O sensor
- CH2O Calibration function in fresh air
- Low battery indicator
- Complete with universal AC adaptor (including US, EU, UK, and AU plugs), and 4 AAA batteries
